GUIDEBOOK OF THE WESTERN XJT^ITED STATES. 239 



Page. 



Plate XXIV. A, The \\ itches, near Echo, Utah, a? peen from the train; J5, 



Side view showing, on the butte to the right, the *^ Witch's 



86 



.87 



Cap ' 



XXV. Aj View of the valley of Weber Eiver from Witches Rocks; B, 



The Devil's Slide 



XXVI. A, Z-shaped folds near cast end of Ogden Canyon; 5, Recent 



fault scarp at the mouth of Ogden Canyon 100 



XXVII. View in Ogden Canyon below The Narrows. 101 



XXV^III. A, West front of Wasatch Range at Ogden, Utah; S, Diagram 



sho'vs'ing geology of mountain masses in ^ 104 



Aj Lake Bonneville shore line at Brigham, Utah; 5, Cam])rian 



quartzite resting on Archean gneiss near Willard, Utah. 105 



A, *'The Gates" of Bear River; B, East Butte, Idaho 112 



Red Rock Pass and the outlet channel of Lake Bonneville 113 



Upper falls, Henrys Fork of Snake River 144 



XXXIII. Lower falls, Henrys Fork of Snake River 145 



XXXIV. View eastward alone: the Lucin cut-off across the west arm of 



152 



153 



, J 



Great Salt Lake 



'^, Palisade Canyon, Nev y 



. Af Snow on the north end of the Humboldt Mountains; B, 

 Hot spring near Elko, Nev t 



• 176 



XXXVII. Channel of Humboldt River near Rye Patch, Nev. 177 



XXXVIIL Carson Desert at Parran, Nev 



L Piute Indians at home 



182 



183 



XL. Tonopah, Nev., a typical mining community 184 



XLL Consolidated mill, Goldfield, Nev 185 



XLII. United States Reclamation Service dam on Truckee River 188 



XLIIL Virginia City, Nev., on the famous Comstock Lode 189 



XLIV. A, Truckee River canyon near Floriston, CaL; 5, Truckee, Cal. 196 



XLV. Lake Tahoe, Cal 197 



XLVI. Cave Rock, Lake Tahoe, Cal 200 



XL VII. A, Donner Lake; B, Desolation Valley, near Lake Tahoe 201 



XLVIIL A, View of Tertiary gold-gravel deposits between Gold Run 



and Dutch Flat; B, ^'iew in a railroad cut between Forebay 



and Midas 



XLIX. A, View do-v^na canyon of North Fork of American River from 



206 



Cape Horn, CaL; B, Blue Canyon, Cal 207 



L. State capitol at Sacramento, Cal 216 



FIGURES. 



Page. 



Figure 1. Sketch profile of river bluffs near Omaha, Nebr., showing Aftonian 



gravels '. 8 



2. Sketch profile showing relation of loess to underlying beds of clay 



and glacial till in railroad cuts west of Omaha, Nebr - 14 



3. Cross section of the rock formations from the Rocky Mountains to 



Omaha, Nebr 16 



4. Map of North America showing area covered by the Pleistocene ice 



sheet at its maximum extension 22 



5- Sketch profile of the bluffs near Brule, Nebr 31 



6- Typical sand dune with blow-out in its top - 33 



7. Tertiary sand and gravel overhang truncated edges of older rocks. . 42 



8, Unconformity in a railroad cut 4 miles west of Lookout, Wyo 50 



